Home / 79,665.28-109,942.05-43,854.91

Finding the Fourth Proportional to 79,665.28, 109,942.05 and 43,854.91

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Solution

The fourth proportional to 79,665.28, 109,942.05 and 43,854.91 is: 60,521.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,665.28 : 109,942.05 = 43,854.91 : x
  2. Step 2: Convert to fraction form
    79,665.28/109,942.05 = 43,854.91/x
  3. Step 3: Cross multiply
    79,665.28x = 109,942.05 × 43,854.91
  4. Step 4: Simplify right side
    79,665.28x = 4,821,498,707.97
  5. Step 5: Solve for x
    x = 4,821,498,707.97/79,665.28
  6. Step 6: Final answer
    x = 60,521.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.